DNA Study Uncovers West African Heritage in Early Medieval England

The discovery of two unrelated young men buried in British cemeteries during the early Middle Ages suggests they may have had grandparents from West Africa. The exact means by which their ancestors arrived in the UK remains unknown, but this insight implies that Anglo-Saxon immigration was far more complex than previously assumed.

Following the Romans’ withdrawal from England in 410 AD, the British Isles were invaded and settled by Germanic tribes including the Angles, Saxons, and Jutes. To explore the possibility of migration from other regions, Duncan Sayer and his colleagues from The University of Central Lancashire conducted an analysis of ancient DNA obtained from skeletons in two 7th-century cemeteries located on the southern coast of England.

One of these cemeteries is found in Kent, where a wealth of traded artifacts from various regions were unearthed, including Frankish pottery, buckles, and brooches. Burial customs at this site indicate that items such as cookware, cutlery, and combs were included with the dead.

The other site is the Matravars cemetery in western Dorset, which had fewer individuals interred with Romano-British practices.

While the majority of individuals buried here had ancestry from Northern Europeans or Western British and Irish, both the Updown girl and the young man from Worth Matravers exhibited genetic ties to West Africa, likely from grandparents.

In both cases, mitochondrial DNA, inherited maternally, traced back to Northern Europe; however, the autosomal DNA, inherited from both parents, revealed 20-40% ancestry from West African groups such as Esan, Yoruba, Mende, and Mandinka.

This indicates that the West African DNA likely traces back to their grandparents, marking the first known genetic link between Britain and Africa during the early Middle Ages.

Both individuals were interred as typical members of their community. DNA analysis revealed that the Updown girl had relatives—a grandmother and an aunt—buried in the same cemetery, who were approximately 11-13 years old when she died.

Examination of the carbon-nitrogen isotope ratios in the bone samples of the young man from Worth Matravers, who lived between the ages of 17 and 25, suggested insights into his diet during his growth period.

“His dietary habits suggest he was born and raised in the UK,” notes team member Ceiridwen Edwards from Huddersfield University.

Edwards indicates that evidence of West African DNA in York existed during the Roman period; however, Sayer contends that the proportion of West African DNA in these individuals is significantly lower than that of descendants from the Roman era. “This finding pertains to grandparents, rather than survivors of the Roman legions or administrators stationed for centuries,” he asserts.

Moreover, there is no evidence to support the notion that these individuals were enslaved, according to Sayer:

Instead, it suggests a context of transactions and mobility of people and goods. At some point, West Africans may have arrived in England aboard trade ships and settled here.

Sayer speculates that their arrival could have been tied to North Africa’s connection with the Byzantine Empire in the 6th century, driven by military interests in accessing gold from sub-Saharan Africa. “The revitalization of this trade route coincides with a time when we can identify these grandparents,” he remarks.

“This research underscores the dynamic state of what we refer to as post-[Western] Rome and the early medieval period in England,” comments Marina Soares da Silva at the Francis Crick Institute in London. “The authors propose a trade route supported by Byzantine governance in North Africa, which I consider a plausible scenario.”

According to Sayer, 7th-century England was not merely a collection of isolated communities in a ‘dark age,’ but rather dynamic societies engaging in trade and genetic exchanges with West Africa and beyond.

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